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Summary: Ctors | Methods | Inherited Methods

# Sets

`public class Sets`
`extends Object` ``

java.lang.Object
↳ | com.google.android.collect.Sets

Provides static methods for creating mutable `Set` instances easily and other static methods for working with Sets.

## Summary

### Public constructors
`Sets()`

### Public methods
`static <E> ArraySet<E>` | `newArraySet()` Creates a `ArraySet` instance.
`static <E> ArraySet<E>` | `newArraySet(E... elements)` Creates a `ArraySet` instance containing the given elements.
`static <E> HashSet<E>` | `newHashSet(E... elements)` Creates a `HashSet` instance containing the given elements.
`static <K> HashSet<K>` | `newHashSet()` Creates an empty `HashSet` instance.
`static <E> SortedSet<E>` | `newSortedSet(E... elements)` Creates a `SortedSet` instance containing the given elements.
`static <E> SortedSet<E>` | `newSortedSet()` Creates an empty `SortedSet` instance.

### Inherited methods
From class `java.lang.Object`
`Object` | `clone()` Creates and returns a copy of this object.
`boolean` | `equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void` | `finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>` | `getClass()` Returns the runtime class of this `Object`.
`int` | `hashCode()` Returns a hash code value for the object.
`final void` | `notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void` | `notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String` | `toString()` Returns a string representation of the object.
`final void` | `wait(long timeout, int nanos)` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
`final void` | `wait(long timeout)` Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.
`final void` | `wait()` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.

## Public constructors

### Sets

    public Sets ()

## Public methods

### newArraySet

    public static ArraySet<E> newArraySet ()

Creates a `ArraySet` instance.

Returns
`ArraySet<E>` |

### newArraySet

    public static ArraySet<E> newArraySet (E... elements)

Creates a `ArraySet` instance containing the given elements.

Parameters
`elements` | `E`

Returns
`ArraySet<E>` |

### newHashSet

    public static HashSet<E> newHashSet (E... elements)

Creates a `HashSet` instance containing the given elements.

Note: due to a bug in javac 1.5.0_06, we cannot support the following:

`Set<Base> set = Sets.newHashSet(sub1, sub2);`

where `sub1` and `sub2` are references to subtypes of `Base`, not of `Base` itself. To get around this, you must use:

`Set<Base> set = Sets.<Base>newHashSet(sub1, sub2);`

Parameters
`elements` | `E`: the elements that the set should contain

Returns
`HashSet<E>` | a newly-created `HashSet` containing those elements (minus duplicates)

### newHashSet

    public static HashSet<K> newHashSet ()

Creates an empty `HashSet` instance.

Note: if `E` is an `Enum` type, use `EnumSet#noneOf` instead.

Note: if you only need an immutable empty Set, use `Collections#emptySet` instead.

Returns
`HashSet<K>` | a newly-created, initially-empty `HashSet`

### newSortedSet

    public static SortedSet<E> newSortedSet (E... elements)

Creates a `SortedSet` instance containing the given elements.

Parameters
`elements` | `E`: the elements that the set should contain

Returns
`SortedSet<E>` | a newly-created `SortedSet` containing those elements (minus duplicates)

### newSortedSet

    public static SortedSet<E> newSortedSet ()

Creates an empty `SortedSet` instance.

Returns
`SortedSet<E>` | a newly-created, initially-empty `SortedSet`.

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